INGREDIENTS
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1-1/2 pounds Ground Beef
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1 teaspoon salt, divided
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1/2 teaspoon pepper, divided
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1 tablespoon olive oil
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4 ounces button mushrooms, sliced
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1 cup chopped onion
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1 teaspoon dried thyme leaves
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2 cups milk
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5 large eggs
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Nonstick cooking spray
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8 cups crustless bread cubes (3/4-inch)
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2 cups shredded Asiago or fontina cheese
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1 cup cherry or grape tomatoes, cut in half
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Thinly sliced fresh basil